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Rollback
Rollback Guidelines
If the upgrade fails and the software version is still the source version, you do not need to perform a rollback. If any of the following problems occurs, contact technical support to determine whether a rollback is required.
- A major fault occurred during the upgrade, and cannot be located and rectified within the specified time.
- After the upgrade is complete, the target version functions abnormally.
- The entire upgrade cannot be finished as scheduled. To prevent service interruption in peak hours caused by the upgrade, a rollback is required.
Rollback Procedure
- Determine the target version.
You are advised to roll back the firmware to the version that is used before the upgrade.
- Roll back the software version.
The rollback procedure is the same as the upgrade procedure. For details, see Upgrade Procedure.